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<div class="title">arm_bayes_example_f32.c</div>  </div>
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<div class="contents">
<div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Copyright (C) 2019-2020 ARM Limited. All rights reserved.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* $Date:         09. December 2019</span></div>
<div class="line"><span class="comment">* $Revision:     V1.0.0</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Project:       CMSIS DSP Library</span></div>
<div class="line"><span class="comment">* Title:         arm_bayes_example_f32.c</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Description:   Example code demonstrating how to use Bayes functions.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Target Processor: Cortex-M/Cortex-A</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
<div class="line"><span class="comment">* are met:</span></div>
<div class="line"><span class="comment">*   - Redistributions of source code must retain the above copyright</span></div>
<div class="line"><span class="comment">*     notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><span class="comment">*   - Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><span class="comment">*     notice, this list of conditions and the following disclaimer in</span></div>
<div class="line"><span class="comment">*     the documentation and/or other materials provided with the</span></div>
<div class="line"><span class="comment">*     distribution.</span></div>
<div class="line"><span class="comment">*   - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
<div class="line"><span class="comment">*     may be used to endorse or promote products derived from this</span></div>
<div class="line"><span class="comment">*     software without specific prior written permission.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><span class="comment">* &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
<div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
<div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
<div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
<div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
<div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
<div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
<div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><span class="comment">* -------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#include &lt;math.h&gt;</span></div>
<div class="line"><span class="preprocessor">#include &lt;stdio.h&gt;</span></div>
<div class="line"><span class="preprocessor">#include &quot;<a class="code" href="arm__math_8h.html">arm_math.h</a>&quot;</span></div>
<div class="line"></div>
<div class="line"><span class="comment">/* </span></div>
<div class="line"><span class="comment">Those parameters can be generated with the python library scikit-learn.</span></div>
<div class="line"><span class="comment">*/</span></div>
<div class="line"><a name="_a0"></a><a class="code" href="structarm__gaussian__naive__bayes__instance__f32.html">arm_gaussian_naive_bayes_instance_f32</a> <a name="a1"></a><a class="code" href="arm__bayes__example__f32_8c.html#ad5af783c9e1eb1514dec0a59dac35eb7">S</a>;</div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#define NB_OF_CLASSES 3</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define VECTOR_DIMENSION 2</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a2"></a><a class="code" href="arm__bayes__example__f32_8c.html#af0f893acc3866ec103f68776dc5abed8">theta</a>[<a name="a3"></a><a class="code" href="arm__bayes__example__f32_8c.html#a29d34219689e613d2e2cf860c62b3061">NB_OF_CLASSES</a>*<a name="a4"></a><a class="code" href="arm__bayes__example__f32_8c.html#a98d2e2076140b796ee1cb5f3e77248a7">VECTOR_DIMENSION</a>] = {</div>
<div class="line">  1.4539529436590528f, 0.8722776016801852f, </div>
<div class="line">  -1.5267934452462473f, 0.903204577814203f, </div>
<div class="line">  -0.15338006360932258f, -2.9997913665803964f</div>
<div class="line">}; </div>
<div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a5"></a><a class="code" href="arm__bayes__example__f32_8c.html#aab1dfd777fcd14533f591c799743cf52">sigma</a>[<a class="code" href="arm__bayes__example__f32_8c.html#a29d34219689e613d2e2cf860c62b3061">NB_OF_CLASSES</a>*<a class="code" href="arm__bayes__example__f32_8c.html#a98d2e2076140b796ee1cb5f3e77248a7">VECTOR_DIMENSION</a>] = {</div>
<div class="line">  1.0063470889514925f, 0.9038018246524426f, </div>
<div class="line">  1.0224479953244736f, 0.7768764290432544f, </div>
<div class="line">  1.1217662403241206f, 1.2303890106020325f</div>
<div class="line">}; </div>
<div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a6"></a><a class="code" href="arm__bayes__example__f32_8c.html#a39439215586c0acf10a04ed9eda06414">classPriors</a>[<a class="code" href="arm__bayes__example__f32_8c.html#a29d34219689e613d2e2cf860c62b3061">NB_OF_CLASSES</a>] = {</div>
<div class="line">  0.3333333333333333f, 0.3333333333333333f, 0.3333333333333333f</div>
<div class="line">}; </div>
<div class="line">int32_t <a name="a7"></a><a class="code" href="arm__bayes__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">main</a>(<span class="keywordtype">void</span>)</div>
<div class="line">{</div>
<div class="line">  <span class="comment">/* Array of input data */</span></div>
<div class="line">  <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> in[2];</div>
<div class="line"></div>
<div class="line">  <span class="comment">/* Result of the classifier */</span></div>
<div class="line">  <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> result[<a class="code" href="arm__bayes__example__f32_8c.html#a29d34219689e613d2e2cf860c62b3061">NB_OF_CLASSES</a>];</div>
<div class="line">  <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> maxProba;</div>
<div class="line">  uint32_t index;</div>
<div class="line">  </div>
<div class="line">  S.<a name="a8"></a><a class="code" href="structarm__gaussian__naive__bayes__instance__f32.html#a0e4e79474f031ec0e827fea331bfc7e1">vectorDimension</a> = <a class="code" href="arm__bayes__example__f32_8c.html#a98d2e2076140b796ee1cb5f3e77248a7">VECTOR_DIMENSION</a>; </div>
<div class="line">  S.<a name="a9"></a><a class="code" href="structarm__gaussian__naive__bayes__instance__f32.html#a01416824fa5e430f356fb8749bb30499">numberOfClasses</a> = <a class="code" href="arm__bayes__example__f32_8c.html#a29d34219689e613d2e2cf860c62b3061">NB_OF_CLASSES</a>; </div>
<div class="line">  S.<a name="a10"></a><a class="code" href="structarm__gaussian__naive__bayes__instance__f32.html#a88b225d1292eefe044cb0464aac35210">theta</a> = <a class="code" href="arm__bayes__example__f32_8c.html#af0f893acc3866ec103f68776dc5abed8">theta</a>;          </div>
<div class="line">  S.<a name="a11"></a><a class="code" href="structarm__gaussian__naive__bayes__instance__f32.html#a749ffa47df1de71fda9acd54bd262441">sigma</a> = <a class="code" href="arm__bayes__example__f32_8c.html#aab1dfd777fcd14533f591c799743cf52">sigma</a>;         </div>
<div class="line">  S.<a name="a12"></a><a class="code" href="structarm__gaussian__naive__bayes__instance__f32.html#a7415f6aac3f4aea80895824bc192371b">classPriors</a> = <a class="code" href="arm__bayes__example__f32_8c.html#a39439215586c0acf10a04ed9eda06414">classPriors</a>;    </div>
<div class="line">  S.<a name="a13"></a><a class="code" href="structarm__gaussian__naive__bayes__instance__f32.html#a05a3e725ff3c5b5241f17472cf8f44ec">epsilon</a>=4.328939296523643e-09f; </div>
<div class="line"></div>
<div class="line">  in[0] = 1.5f;</div>
<div class="line">  in[1] = 1.0f;</div>
<div class="line"></div>
<div class="line">  <a name="a14"></a><a class="code" href="group__groupBayes.html#ga84d3fecc4e11958ca19c4e86fc8c8eb1">arm_gaussian_naive_bayes_predict_f32</a>(&amp;S, in, result);</div>
<div class="line"></div>
<div class="line">  <a name="a15"></a><a class="code" href="group__Max.html#gad1eabd31544fe59c414d9ce5bd0cc151">arm_max_f32</a>(result, <a class="code" href="arm__bayes__example__f32_8c.html#a29d34219689e613d2e2cf860c62b3061">NB_OF_CLASSES</a>, &amp;maxProba, &amp;index);</div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#if defined(SEMIHOSTING)</span></div>
<div class="line"><span class="preprocessor"></span>  printf(<span class="stringliteral">&quot;Class = %d\n&quot;</span>, index);</div>
<div class="line"><span class="preprocessor">#endif</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line">  in[0] = -1.5f;</div>
<div class="line">  in[1] = 1.0f;</div>
<div class="line"></div>
<div class="line">  <a class="code" href="group__groupBayes.html#ga84d3fecc4e11958ca19c4e86fc8c8eb1">arm_gaussian_naive_bayes_predict_f32</a>(&amp;S, in, result);</div>
<div class="line"></div>
<div class="line">  <a class="code" href="group__Max.html#gad1eabd31544fe59c414d9ce5bd0cc151">arm_max_f32</a>(result, <a class="code" href="arm__bayes__example__f32_8c.html#a29d34219689e613d2e2cf860c62b3061">NB_OF_CLASSES</a>, &amp;maxProba, &amp;index);</div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#if defined(SEMIHOSTING)</span></div>
<div class="line"><span class="preprocessor"></span>  printf(<span class="stringliteral">&quot;Class = %d\n&quot;</span>, index);</div>
<div class="line"><span class="preprocessor">#endif</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line">  in[0] = 0.0f;</div>
<div class="line">  in[1] = -3.0f;</div>
<div class="line"></div>
<div class="line">  <a class="code" href="group__groupBayes.html#ga84d3fecc4e11958ca19c4e86fc8c8eb1">arm_gaussian_naive_bayes_predict_f32</a>(&amp;S, in, result);</div>
<div class="line"></div>
<div class="line">  <a class="code" href="group__Max.html#gad1eabd31544fe59c414d9ce5bd0cc151">arm_max_f32</a>(result, <a class="code" href="arm__bayes__example__f32_8c.html#a29d34219689e613d2e2cf860c62b3061">NB_OF_CLASSES</a>, &amp;maxProba, &amp;index);</div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#if defined(SEMIHOSTING)</span></div>
<div class="line"><span class="preprocessor"></span>  printf(<span class="stringliteral">&quot;Class = %d\n&quot;</span>, index);</div>
<div class="line"><span class="preprocessor">#endif</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor">#if !defined(SEMIHOSTING)</span></div>
<div class="line"><span class="preprocessor"></span>  <span class="keywordflow">while</span> (1); <span class="comment">/* main function does not return */</span></div>
<div class="line"><span class="preprocessor">#endif</span></div>
<div class="line"><span class="preprocessor"></span>}</div>
<div class="line"></div>
<div class="line"></div>
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